AD 73-06-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Failures of the leading edge slat actuators (Ronson Part No. 1U1095) on slats numbered 1, 2, 7, and 8.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Re-work actuators in accordance with Boeing Service Bulletin 27-129 or replace with redesigned Ronson Part Nos. 1U1095-5, 1U1095-9-2, or Decoto Part Nos. 2-690029-1, -2, or -3.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 3000 landings from the effective date of this AD (March 13, 1973).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 727 series airplanes listed in Boeing Service Bulletin 27-129 dated 3 October 1969, or later FAA approved Revisions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Leading Edge Slat Actuators
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-06-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-06-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 727 Series Airplanes Subject: Leading Edge Slat Actuators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/13/1973 Make: The Boeing Company Model: 727-100 Series | 727-100C Series | 727-200 Series | 727-200F Series | 727 Series | 727C Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-06-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1603 AD NUMBER: 73-06-01 SUBJECT HEADING: BOEING Model 727 Series Airplanes ACTION: SUMMARY: DATES: Effective March 13, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-06-01 BOEING: Amdt. 39-1603. Applies to all Model 727 series airplanes listed in Boeing Service Bulletin 27-129 dated 3 October 1969, or later FAA approved Revisions. Compliance required as indicated. To prevent failures of the leading edge slat actuators, accomplish the following: (a) Within 3000 landings from the effective date of this AD. (1) Rework actuators (Ronson Part No. 1U1095) on leading edge slats numbered 1, 2, 7 and 8 in accordance with rework instructions in Boeing Service Bulletin 27-129, dated 3 October 1969, or later FAA approved Revisions, or rework in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region, or (2) Replace actuators (Ronson Part No. 1U1095) on slats numbered 1, 2, 7 and 8 with redesigned actuators, Ronson Part Nos. 1U1095-5 or 1U1095-9-2, or replace with actuators, Decoto Part Nos. 2-690029-1, -2, or -3. (b) Rework of the actuators, Ronson Part No. 1U1095 in accordance with (a)(1) above or replacement of the actuators in accordance with (a)(2) above constitutes terminating action under the provisions of this AD. This amendment becomes effective March 13, 1973. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_73-06-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-06-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: BOEING Model 727 Series Airplanes Subject: Leading Edge Slat Actuators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/13/1973 Make: The Boeing Company Model: 727-100 Series | 727-100C Series | 727-200 Series | 727-200F Series | 727 Series | 727C Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-06-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1603 AD NUMBER: 73-06-01 SUBJECT HEADING: BOEING Model 727 Series Airplanes ACTION: SUMMARY: DATES: Effective March 13, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-06-01 BOEING: Amdt. 39-1603. Applies to all Model 727 series airplanes listed in Boeing Service Bulletin 27-129 dated 3 October 1969, or later FAA approved Revisions. Compliance required as indicated. To prevent failures of the leading edge slat actuators, accomplish the following: (a) Within 3000 landings from the effective date of this AD. (1) Rework actuators (Ronson Part No. 1U1095) on leading edge slats numbered 1, 2, 7 and 8 in accordance with rework instructions in Boeing Service Bulletin 27-129, dated 3 October 1969, or later FAA approved Revisions, or rework in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region, or (2) Replace actuators (Ronson Part No. 1U1095) on slats numbered 1, 2, 7 and 8 with redesigned actuators, Ronson Part Nos. 1U1095-5 or 1U1095-9-2, or replace with actuators, Decoto Part Nos. 2-690029-1, -2, or -3. (b) Rework of the actuators, Ronson Part No. 1U1095 in accordance with (a)(1) above or replacement of the actuators in accordance with (a)(2) above constitutes terminating action under the provisions of this AD. This amendment becomes effective March 13, 1973. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.